28522235 ÷ 521 
We're looking to find how many times 521 goes into 28522235.

On to step 1:
The number 521 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 521

Advancing to step 2:
28 divided by 521 is 0 with a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Take the next digit (5) from the dividend and append it to 28, then repeat: 285 / 521

Advancing to step 3:
When dividing 285 by 521, we get 0 with a remainder of 285.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 285 leaves us with 285.
Include the next digit (2) from the dividend after 285, then repeat: 2852 / 521

Step 4:
521 can be fit into 2852 5 times, resulting in a remainder of 247.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 2605 away from 2852, we end up with 247.
Fetch the next digit (2) from the dividend, attach it to 247 and continue: 2472 / 521

On to step 5:
521 can be fit into 2472 4 times, resulting in a remainder of 388.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
Deduct 2084 from 2472 and we're left with 388.
Include the next digit (2) from the dividend after 388, then repeat: 3882 / 521

Advancing to step 6:
521 goes into 3882 7 times with a remainder of 235.
Use 7 as the next digit of our solution. 
Result so far: 547.0
Deduct 3647 from 3882 and we're left with 235.
Include the next digit (3) from the dividend after 235, then repeat: 2353 / 521

Going ahead to step 7:
521 goes into 2353 4 times with a remainder of 269.
Put 4 as the next digit of the answer. 
Result so far: 5474.0
If we subtract 2084 from 2353, we get 269.
Include the next digit (5) from the dividend after 269, then repeat: 2695 / 521

Advancing to step 8:
521 goes into 2695 5 times with a remainder of 90.
Put 5 as the next digit of the answer. 
Result so far: 54745.0
Subtract 2605 from 2695 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 9:
521 can be fit into 900 1 times, resulting in a remainder of 379.
Record the quotient 1 as the next digit in the result. 
Result so far: 54745.1
The remainder is 379 after subtracting 521 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Let's proceed to step 10:
3790 divided by 521 is 7 with a remainder of 143.
Record the quotient 7 as the next digit in the result. 
Result so far: 54745.17
Subtract 3647 from 3790 to get 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

On to step 11:
The number 521 fits into 1430 2 times, leaving a remainder of 388.
Use 2 as the next digit of our solution. 
Result so far: 54745.172
If we subtract 1042 from 1430, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 12:
The number 521 fits into 3880 7 times, leaving a remainder of 233.
The next digit of our result is 7. 
Result so far: 54745.1727
Subtracting 3647 from 3880 leaves us with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Advancing to step 13:
521 goes into 2330 4 times with a remainder of 246.
The number 4 becomes the next digit in our result. 
Result so far: 54745.17274
If we subtract 2084 from 2330, we get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Advancing to step 14:
If we divide 2460 by 521, we get 4 and a remainder of 376.
Record the quotient 4 as the next digit in the result. 
Result so far: 54745.172744
Subtracting 2084 from 2460 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

The final outcome is 54745.172744, with a leftover of 3.76e-05.